Name of Related Party | | Tax ID No. | | Nature of Relationship | | Country | | Currency | | Maturity | | 12-31-2017 ThU.S.$ | | 12-31-2016 ThU.S.$ | |
| | | | | | | | | | | | | | | |
Forestal Mininco S.A. | | 91.440.000-7 | | Common Stockholder | | Chile | | Chilean pesos | | 30 days | | 25 | | 39 | |
Eka Chile S.A. | | 99.500.140-3 | | Joint Venture | | Chile | | Chilean pesos | | 30 days | | 2,027 | | 1,701 | |
Forestal del Sur S.A. | | 79.825.060-4 | | Common director | | Chile | | Chilean pesos | | 30 days | | 4 | | 7,618 | |
Unilin Arauco Pisos Ltda. | | - | | Joint Venture | | Brazil | | Brazilian Real | | 30 days | | 171 | | 726 | |
Colbún S.A. | | 96.505.760-9 | | Common director | | Chile | | Chilean pesos | | 30 days | | 136 | | - | |
CMPC Celulosa S.A. | | 96.532.330-9 | | Common Stockholder | | Chile | | Chilean pesos | | - | | - | | 2 | |
Fundación Educacional Arauco | | 71.625.000-8 | | Common director | | Chile | | Chilean pesos | | - | | - | | 1,188 | |
Fundación Acerca Redes | | 65.097.218-K | | Parent company is founder and contributor | | Chile | | U.S. Dollar | | 30 days | | 726 | | 274 | |
Compañía Puerto de Coronel S.A. | | 79.895.330-3 | | Subsidiary of an Associate | | Chile | | U.F. | | 30 days | | 399 | | 957 | |
TOTAL | | | | | | | | | | | | 3,488 | | 12,505 | |
| | | | Nature of | | | | | | | 12-31-2017 | | 12-31-2016 | |
Name of Related Party | | Tax ID No. | | Relationship | | Country | Currency | | Maturity | | ThU.S.$ | | ThU.S.$ | |
Compañía Puerto de Coronel S.A. | | 79.895.330-3 | | Subsidiary of an Associate | | Chile | U.F. | | Sep-18 | | 528 | | 478 | |
Compañía Puerto de Coronel S.A. | | 79.895.330-3 | | Subsidiary of an Associate | | Chile | U.F. | | Sep-19 | | 528 | | 478 | |
TOTAL | | | | | | | | | | | 1,056 | | 957 | |
| | | | Nature of | | | | | | | | 12-31-2017 | | 12-31-2016 | |
Name of Related party | | Tax ID No. | | Relationship | | Country | | Currency | | Maturity | | ThU.S.$ | | ThU.S.$ | |
Compañía de Petróleos de Chile S.A. | | 99.520.000-7 | | Common controlling parent | | Chile | | Chilean pesos | | 30 days | | 8,837 | | 1,758 | |
Abastible S.A. | | 91.806.000-6 | | Controlling Parent’s Subsidiary | | Chile | | Chilean pesos | | 30 days | | 545 | | 97 | |
Fundación Educacional Arauco | | 71.625.000-8 | | Common director | | Chile | | Chilean pesos | | 30 days | | 54 | | - | |
Red to Green S.A. (Ex-Sigma Servicios Informáticos S.A.) | | 86.370.800-1 | | Common director | | Chile | | Chilean pesos | | 30 days | | 1 | | - | |
Portaluppi, Guzman y Bezanilla Abogados | | 78.096.080-9 | | Common director | | Chile | | Chilean pesos | | 30 days | | 146 | | - | |
Empresa Nacional de Telecomunicaciones S.A. | | 92.580.000-7 | | Common Stockholder | | Chile | | Chilean pesos | | 30 days | | 137 | | - | |
Servicios Corporativos Sercor S.A. | | 96.925.430-1 | | Subsidiary of the Associate | | Chile | | Chilean pesos | | 30 days | | 29 | | - | |
Puerto Lirquén S.A. | | 96.959.030-1 | | Subsidiary of the Associate | | Chile | | U.S. Dollar | | 30 days | | 1,354 | | 1,246 | |
Compañía Puerto de Coronel S.A. | | 79.895.330-3 | | Subsidiary of the Associate | | Chile | | U.S. Dollar | | - | | - | | 723 | |
Adm.Estaciones de Servicio Serco Ltda. | | 79.689.550-0 | | Common controlling parent | | Chile | | Chilean pesos | | 30 days | | 1 | | - | |
Adm. de Ventas al Detalle Arco Prime Ltda. | | 77.215.640-5 | | Common controlling parent | | Chile | | Chilean pesos | | 30 days | | 14 | | 5 | |
Empresa Distrib. Papeles y Cartones S.A. | | 88.566.900-k | | Common Stockholder | | Chile | | Chilean pesos | | - | | - | | 2 | |
Elemental S.A. | | 76.659.730-0 | | Indirect associate of controlling parent | | Chile | | Chilean pesos | | 30 days | | 4 | | - | |
Woodtech S.A. | | 76.724.000-7 | | Indirect associate of controlling parent | | Chile | | Chilean pesos | | 30 days | | 86 | | - | |
TOTAL | | | | | | | | | | | | 11,208 | | 3,831 | |